<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>淘宝轮播图</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }

        li{
            list-style: none;
        }
        .tb-promo{
            position: relative;
            width: 520px;
            height: 280px;
            background: pink;
            margin: 100px auto;
        }
        .pref{
            position: absolute;
            left: 0px;
            top: 50%;
            margin-top: -15px;
            width: 20px;
            height: 30px;
            background: rgba(0,0,0,0.7);
            border-top-right-radius: 15px;
            border-bottom-right-radius: 15px;
        }
        .next{
            position: absolute;
            right: 0px;
            top: 50%;
            margin-top: -15px;
            width: 20px;
            height: 30px;
            background: rgba(0,0,0,0.7);
            border-top-left-radius: 15px;
            border-bottom-left-radius: 15px;
        }
        .promo-nav{
            position: absolute;
            width: 70px;
            height: 13px;
            bottom: 15px;
            left: 50%;
            margin-left: -35px;
            border-radius: 15px;
            background-color: rgba(255,255,255,.3)
        }
        .point{
            float: top;
            background-color: aqua;
        }
        .promo-nav li{
            float: left;
            width: 8px;
            height: 8px;
            background-color: white;
            border-radius: 4px;
            margin-left: 3px;
            margin-right: 3px;

        }
    </style>
</head>
<body>
<div class="tb-promo">
    <a class="pref"></a>
    <a class="next"></a>
    <div class="promo-nav">
        <ul>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
        </ul>
    </div>
</div>
</body>
</html>